<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" label-width="68px">
      <el-form-item label="标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入标题"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          @click="handleExport"
          icon="el-icon-download"
          size="mini"
          type="warning"
        >导出
        </el-button>
      </el-col>
    </el-row>

    <el-table v-loading="loading" :data="newsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="标题" align="center" prop="title"/>
      <el-table-column
        :formatter="typeFormat"
        align="center"
        label="资讯类型"
        prop="newsType"
        width="200"
      />
      <el-table-column label="阅读量" align="center" prop="reading"/>
      <el-table-column label="点赞量" align="center" prop="likes"/>
      <el-table-column label="排序" align="center" prop="orders"/>
      <el-table-column label="状态" align="center">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.status"
            active-value="1"
            inactive-value="0"
            @change="handleStatusChange(scope.row)"
          ></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改新闻资讯对话框 -->
    <el-dialog :title="title" :visible.sync="open" append-to-body width="800px">
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">


        <el-form-item label="标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入标题"/>
        </el-form-item>

        <el-form-item label="资讯类型" prop="newsType">
          <el-select placeholder="请选择" v-model="form.newsType">
            <el-option
              :key="dict.dictValue"
              :label="dict.dictLabel"
              :value="dict.dictValue"
              v-for="dict in typeOptions"
            ></el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="图片" prop="banner">
          <!--          <el-input v-model="form.imgMap" placeholder="请输入地图图片" />-->
          <el-upload
            class="avatar-uploader"
            :action="action"
            :show-file-list="false"
            :on-success="uploadSuccess"
          >
            <img v-if="form.banner" :src="form.banner" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
          </el-upload>
        </el-form-item>


        <!--<el-form-item label="视频" prop="videoUrl">
          <el-input v-model="form.videoUrl" placeholder="请输入视频地址"/>
          <el-upload
            class="avatar-uploader"
            :action="action"
            :show-file-list="false"
            :on-progress="uploadVideoProcess"
            :on-success="handleVideoSuccess"
          >
            <video v-if="form.videoUrl && !videoFlag"
                   v-bind:src="form.videoUrl"
                   class="avatar video-avatar"
                   controls="controls">
              您的浏览器不支持视频播放
            </video>
            <i v-else-if="form.videoUrl == '' && !videoFlag" class="el-icon-plus avatar-uploader-icon"></i>
            <el-progress v-if="videoFlag == true"
                         type="circle"
                         v-bind:percentage="videoUploadPercent"
                         style="margin-top:7px;"></el-progress>
          </el-upload>
        </el-form-item>-->

        <el-form-item label="排序" prop="orders">
          <el-input v-model="form.orders" placeholder="请输入排序"/>
        </el-form-item>

        <el-row>
          <el-col :span="12">
            <el-form-item label="状态">
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in statusOptions"
                  :key="dict.dictValue"
                  :label="dict.dictValue"
                >{{dict.dictLabel}}
                </el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>

          <el-col :span="12">
            <el-form-item label="置顶">
              <el-radio-group v-model="form.isTop">
                <el-radio
                  v-for="dict in statusTopOptions"
                  :key="dict.dictValue"
                  :label="dict.dictValue"
                >{{dict.dictLabel}}
                </el-radio>
              </el-radio-group>

            </el-form-item>
          </el-col>

          <el-col :span="24">
            <el-form-item label="文章内容" prop="claimMethod">
              <Editor v-model="form.content"/>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div class="dialog-footer" slot="footer" style="padding-top:20px">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {listNews, getNews, delNews, addNews, updateNews, exportNews} from '@/api/system/news'
  import Editor from '@/components/Editor'

  export default {
    name: 'News',
    components: {
      Editor
    },
    data() {
      return {
        // 视频上传
        videoFlag: false,
        //是否显示进度条
        videoUploadPercent: '',
        //进度条的进度，
        isShowUploadVideo: false,

        action: process.env.VUE_APP_BASE_API + '/system/upload/file',
        statusOptions: [],
        statusTopOptions: [],
        typeOptions: [],
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 总条数
        total: 0,
        // 新闻资讯表格数据
        newsList: [],
        // 弹出层标题
        title: '',
        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          title: undefined,
          orders: undefined,
          status: undefined
        },
        // 表单参数
        form: {},
        // 表单校验
        rules: {}
      }
    },
    created() {
      this.getList()
      this.getDicts('sys_shelf_status').then(response => {
        this.statusOptions = response.data
      });
      this.getDicts('sys_top_status').then(response => {
        this.statusTopOptions = response.data
      });
      this.getDicts("sys_news_type").then(response => {
        this.typeOptions = response.data;
      });
    },
    methods: {
      typeFormat(row, column) {
        return this.selectDictLabel(this.typeOptions, row.newsType);
      },
      //进度条
      uploadVideoProcess(event, file, fileList) {
        this.videoFlag = true
        this.videoUploadPercent = file.percentage.toFixed(0) * 1
      },
      // 视频上传成功
      handleVideoSuccess(e, file) {
        this.isShowUploadVideo = true
        this.videoFlag = false
        this.videoUploadPercent = 0
        console.log('upload video success', e)
        if (e.code === 200) {
          this.form.videoUrl = e.data.path
        }
      },

      uploadSuccess(e) {
        console.log(e)
        if (e.code === 200) {
          this.form.banner = e.data.path
        }
      },
      handleStatusChange(row) {
        console.log('aqie', row.status)
        let text = row.status == '0' ? '下架' : '上架'
        this.$confirm('确认要"' + text + '"新闻吗?', '警告', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(function () {
          let data = {
            'newsId': row.newsId,
            'status': row.status
          }
          return updateNews(data)
        }).then(() => {
          this.msgSuccess(text + '成功')
        }).catch(function () {
          row.status = row.status == '0' ? '1' : '0'
        })
      },
      /** 查询新闻资讯列表 */
      getList() {
        this.loading = true
        listNews(this.queryParams).then(response => {
          this.newsList = response.rows
          this.total = response.total
          this.loading = false
        })
      },
      // 取消按钮
      cancel() {
        this.open = false
        this.reset()
      },
      // 表单重置
      reset() {
        this.form = {
          newsId: undefined,
          title: undefined,
          reading: undefined,
          likes: undefined,
          orders: undefined,
          status: '0',
          isTop: '',
          createBy: undefined,
          createTime: undefined,
          updateBy: undefined,
          updateTime: undefined,
          remark: undefined,
          newsType: undefined
        }
        this.resetForm('form')
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1
        this.getList()
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm('queryForm')
        this.handleQuery()
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.newsId)
        this.single = selection.length != 1
        this.multiple = !selection.length
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset()
        this.open = true
        this.title = '添加新闻资讯'
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset()
        const newsId = row.newsId || this.ids
        getNews(newsId).then(response => {
          this.form = response.data
          this.form.status = this.form.status + ''
          this.form.isTop = this.form.isTop + ''
          this.form.videoUrl = ''
          this.open = true
          this.title = '修改新闻资讯'
        })
      },
      /** 提交按钮 */
      submitForm: function () {
        this.$refs['form'].validate(valid => {
          if (valid) {
            if (this.form.newsId != undefined) {
              delete this.form.videoUrl
              console.log('update news', this.form)
              updateNews(this.form).then(response => {
                if (response.code === 200) {
                  this.msgSuccess('修改成功')
                  this.open = false
                  this.getList()
                }
              })
            } else {
              addNews(this.form).then(response => {
                if (response.code === 200) {
                  this.msgSuccess('新增成功')
                  this.open = false
                  this.getList()
                }
              })
            }
          }
        })
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const newsIds = row.newsId || this.ids
        this.$confirm('是否确认删除新闻资讯编号为"' + newsIds + '"的数据项?', '警告', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(function () {
          return delNews(newsIds)
        }).then(() => {
          this.getList()
          this.msgSuccess('删除成功')
        }).catch(function () {
        })
      },
      /** 导出按钮操作 */
      handleExport() {
        const queryParams = this.queryParams
        this.$confirm('是否确认导出所有新闻资讯数据项?', '警告', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(function () {
          return exportNews(queryParams)
        }).then(response => {
          this.download(response.msg)
        }).catch(function () {
        })
      }
    }
  }
</script>

<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }

  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }

  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }

  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }

  .video-avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>
